FOB Price
Obtener el precio más reciente3 ~ 4 / Kilogram ( Negotiable )
|Minimum Order
Place of Origin:
china
Price for Minimum Order:
Minimum Order Quantity:
500 Kilogram
Packaging Detail:
in 25kg carton
Delivery Time:
immediately
Supplying Ability:
5000 Metric Ton per Year
Payment Type:
T/T, L/C, D/A, D/P, Western Union, Money Gram, PayPal, Other
Persona de contacto Ms. Lisa
the 4th street, Tianjin, tianjin
  Product Name:Ascorbic Acid | Testing Date: JAN. 8th, ***3 | ||
Specification | Standard | Result | Â |
        Appearance | White or Almost
White Crystalline Powder |
pass | Â |
Identification | Positive Reaction | Positive | Â |
Melting Point | About **0°C | **1°C |  |
pH(With 2% Water Solution) | 2.4~2.8 | 2.6 | Â |
pH(With 5% Water Solution) | 2.1~2.6 | 2.3 | Â |
Clarity of Solution | Clear | Clear | Â |
Colour of Solution | ≤ BY7 | 1ppm |  |
Arsenic | ≤ 3ppm | < 3ppm |  |
Mercury | ≤ 0.1ppm | < 0.1ppm |  |
Zinc | ≤ *5ppm | < *5ppm |  |
Oxalic Acid | ≤ 0.2% | < 0.2% |  |
Sulphate Ash(Residue on Ignition) | ≤ 0.1% | 0.*3% |  |
Specific Optical Rotation | **0.5° ~ **1.5° | **1.1° |  |
Assay | *9.0% ~ **0.5% | *9.9% | Â |
Loss on Drying | ≤ 0.4% | 0.*3% |  |
Residual Solvents | Methanol:NMT ***0 ppm | < **0ppm | Â |
Related Substances | Impurity C ≤ 0.*5% | Complies |  |
 | Impurity D ≤ 0.*5% |